n the 1880s, science witnessed a major shift: Charles Darwin proposed his theory of evolution. People dug up the first dinosaur fossils. And the field of paleontology--the study of ancient plants and animals--emerged.
Take a walk in the rain forest. It's hot and humid and humming with life. Look up into the dense canopy of leaves above you. Tangled vines lead to the treetops, where parrots squawk and monkeys swing from branch to branch.
